Introduction Answers

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What substances make up the backbone composition of DNA? Check all that apply.

pentose

phosphate

nitrogen

bases

nucleotides

Which of the following is the most accurate way to describe the structure of DNA?

DNA has a single flat structure that wraps around chromosomes.

DNA has a triple strand structure that is braided together.

DNA has a double strand structure that is side by side and twisted together.

DNA has a single strand structure with base pairs.

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